A group of robbers got more than they bargained for when they messed with the wrong clerk at a Houston gas station.
Mayura Dissanayake was behind the counter when he noticed several men trying to rob a co-worker outside.
Surveillance video shows him going to the rescue with a flurry of punches and kicks--that's because he's a semi-professional mixed martial arts fighter.
Two of the men drove off without the third man. Mayura managed to pin him down until the police arrived and arrested him.